DE3561069D1 - Method of heating the blast gas of a blast furnace with a plasma generator - Google Patents
Method of heating the blast gas of a blast furnace with a plasma generatorInfo
- Publication number
- DE3561069D1 DE3561069D1 DE8585401313T DE3561069T DE3561069D1 DE 3561069 D1 DE3561069 D1 DE 3561069D1 DE 8585401313 T DE8585401313 T DE 8585401313T DE 3561069 T DE3561069 T DE 3561069T DE 3561069 D1 DE3561069 D1 DE 3561069D1
- Authority
- DE
- Germany
- Prior art keywords
- pipe
- nozzle
- axis
- plasma generator
- reducing gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/002—Heated electrically (plasma)
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
Abstract
Method for heating the reducing gas of a blast furnace by means of a plasma generator. The reducing gas flows through a pipe into which issues the nozzle of the plasma generator. The pipe leads towards a tuyere of injection into the blast furnace, and the axis of said nozzle converging towards that of the pipe. The method is characterized in that the acute angle A between the axis of the nozzle and the axis of the pipe is at the most equal to 50 DEG , in that the distance 1 separating the point of intersection of the axis of the pipe with the axis of the nozzle from the center of the outlet orifice of the nozzle is at the most equal to D/2sinA, D being the inner diameter of the reducing gas inlet pipe, and in that the ratio D/d, in which d is the inner diameter of the outlet orifice of the nozzle is at least equal to 1.5. The object of the method is to eliminate wear of the reducing gas pipe by means of the jet of plasma.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8410467A FR2566802B1 (en) | 1984-07-02 | 1984-07-02 | METHOD FOR THE HEATING OF THE BLOW GAS OF A BLAST FURNACE BY A PLASMA GENERATOR |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3561069D1 true DE3561069D1 (en) | 1988-01-07 |
Family
ID=9305698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585401313T Expired DE3561069D1 (en) | 1984-07-02 | 1985-06-28 | Method of heating the blast gas of a blast furnace with a plasma generator |
Country Status (10)
Country | Link |
---|---|
US (1) | US4670048A (en) |
EP (1) | EP0170566B1 (en) |
JP (1) | JPS6119710A (en) |
AT (1) | ATE31079T1 (en) |
AU (1) | AU566991B2 (en) |
BR (1) | BR8503232A (en) |
CA (1) | CA1232133A (en) |
DE (1) | DE3561069D1 (en) |
FR (1) | FR2566802B1 (en) |
ZA (1) | ZA854623B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2637443B1 (en) * | 1988-10-03 | 1990-11-02 | Aerospatiale | METHOD AND DEVICE FOR POSITIONING AND REMOVING A PLASMA TORCH ON AN APPARATUS OPERATING UNDER PRESSURE AND TEMPERATURE CONDITIONS FORBIDDEN DIRECT INTERVENTION |
JPH06220129A (en) | 1993-01-20 | 1994-08-09 | Nippon Oil Co Ltd | Production of high-strength and high-modulus polyethylene material |
US8764978B2 (en) | 2001-07-16 | 2014-07-01 | Foret Plasma Labs, Llc | System for treating a substance with wave energy from an electrical arc and a second source |
US10188119B2 (en) | 2001-07-16 | 2019-01-29 | Foret Plasma Labs, Llc | Method for treating a substance with wave energy from plasma and an electrical arc |
US8981250B2 (en) | 2001-07-16 | 2015-03-17 | Foret Plasma Labs, Llc | Apparatus for treating a substance with wave energy from plasma and an electrical Arc |
US7622693B2 (en) * | 2001-07-16 | 2009-11-24 | Foret Plasma Labs, Llc | Plasma whirl reactor apparatus and methods of use |
US7857972B2 (en) | 2003-09-05 | 2010-12-28 | Foret Plasma Labs, Llc | Apparatus for treating liquids with wave energy from an electrical arc |
US9481584B2 (en) | 2001-07-16 | 2016-11-01 | Foret Plasma Labs, Llc | System, method and apparatus for treating liquids with wave energy from plasma |
CA2894535C (en) | 2012-12-11 | 2018-05-29 | Foret Plasma Labs, Llc | High temperature countercurrent vortex reactor system, method and apparatus |
MX358199B (en) | 2013-03-12 | 2018-08-08 | Foret Plasma Labs Llc | Apparatus and method for sintering proppants. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209810A (en) * | 1962-04-24 | 1965-10-05 | Exxon Research Engineering Co | Side-entry fluid fuel injection system for furnaces |
GB1068174A (en) * | 1963-02-22 | 1967-05-10 | Ass Elect Ind | Improvements relating to electric furnaces |
FR1599236A (en) * | 1968-06-19 | 1970-07-15 | ||
DE2120803A1 (en) * | 1971-04-28 | 1972-11-16 | Stahlwerke Peine-Salzgitter AG, 315OPeine | Lance for blowing heavy oil into the blow mold of blast furnaces |
LU81976A1 (en) * | 1979-12-10 | 1981-07-23 | Centre Rech Metallurgique | PROCESS FOR INJECTING HOT REDUCING GASES IN A TANK OVEN |
US4490171A (en) * | 1982-03-31 | 1984-12-25 | Kobe Steel, Limited | Method and apparatus for injecting pulverized fuel into a blast furnace |
SE434650B (en) * | 1982-06-09 | 1984-08-06 | Skf Steel Eng Ab | SEE USE OF PLASM MAGAZINE TO RAISE THE BLESTER TEMPERATURE IN A SHAKT OVEN |
AU550755B2 (en) * | 1983-03-28 | 1986-04-10 | Skf Steel Engineering Ab | Method and apparatus for heating process air |
-
1984
- 1984-07-02 FR FR8410467A patent/FR2566802B1/en not_active Expired
-
1985
- 1985-06-19 ZA ZA854623A patent/ZA854623B/en unknown
- 1985-06-19 AU AU43841/85A patent/AU566991B2/en not_active Ceased
- 1985-06-24 US US06/747,825 patent/US4670048A/en not_active Expired - Lifetime
- 1985-06-27 BR BR8503232A patent/BR8503232A/en not_active IP Right Cessation
- 1985-06-28 EP EP85401313A patent/EP0170566B1/en not_active Expired
- 1985-06-28 CA CA000486078A patent/CA1232133A/en not_active Expired
- 1985-06-28 DE DE8585401313T patent/DE3561069D1/en not_active Expired
- 1985-06-28 AT AT85401313T patent/ATE31079T1/en active
- 1985-07-01 JP JP60145662A patent/JPS6119710A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
BR8503232A (en) | 1986-03-25 |
EP0170566B1 (en) | 1987-11-25 |
CA1232133A (en) | 1988-02-02 |
AU566991B2 (en) | 1987-11-05 |
JPS6119710A (en) | 1986-01-28 |
ATE31079T1 (en) | 1987-12-15 |
AU4384185A (en) | 1986-01-09 |
FR2566802B1 (en) | 1986-12-05 |
JPS648043B2 (en) | 1989-02-13 |
EP0170566A1 (en) | 1986-02-05 |
US4670048A (en) | 1987-06-02 |
FR2566802A1 (en) | 1986-01-03 |
ZA854623B (en) | 1986-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |